Indexing relations on the web

Sergio Luis Sardi Mergen, Juliana Freire, Carlos Alberto Heuser

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

There has been a substantial increase in the volume of (semi) structured data on the Web. This opens new opportunities for exploring and querying these data that goes beyond the keyword-based queries traditionally used on the Web. But supporting queries over a very large number of apparently disconnected Web sources is challenging. In this paper we propose index methods that capture both the structure of the sources and connections between them. The indexes are designed for data that is represented as relations, such as HTML tables, and support queries with predicates. We show how associations between overlapping sources are discovered, captured in the indexes, and used to derive query rewritings that join multiple sources. We demonstrate, through an experimental evaluation, that our approach scales to a large number of sources.

Original languageEnglish (US)
Title of host publicationAdvances in Database Technology - EDBT 2010 - 13th International Conference on Extending Database Technology, Proceedings
Pages430-440
Number of pages11
DOIs
StatePublished - 2010
Event13th International Conference on Extending Database Technology: Advances in Database Technology - EDBT 2010 - Lausanne, Switzerland
Duration: Mar 22 2010Mar 26 2010

Publication series

NameAdvances in Database Technology - EDBT 2010 - 13th International Conference on Extending Database Technology, Proceedings

Other

Other13th International Conference on Extending Database Technology: Advances in Database Technology - EDBT 2010
CountrySwitzerland
CityLausanne
Period3/22/103/26/10

Keywords

  • Dataspaces
  • Indexing
  • Search engines

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Computer Science Applications
  • Software

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  • Cite this

    Sardi Mergen, S. L., Freire, J., & Heuser, C. A. (2010). Indexing relations on the web. In Advances in Database Technology - EDBT 2010 - 13th International Conference on Extending Database Technology, Proceedings (pp. 430-440). (Advances in Database Technology - EDBT 2010 - 13th International Conference on Extending Database Technology, Proceedings). https://doi.org/10.1145/1739041.1739094